Progress 06/27/05 to 07/01/08
Outputs
Progress Report Objectives (from AD-416) To determine the chilling requirement of hardy kiwifruit germplasm to ascertain potential production range in the Pacific Northwest. Determine whether there is a correlation between rate of acclimation, deacclimation, and total chilling requirement on time of bud break, bloom, and harvest in the field. Approach (from AD-416) Fifteen of the most promising hardy kiwifruit accessions housed at the National Clonal Germplasm Repository will be selected based on commercial potential for the Pacific Northwest. The commercially grown Actinidia arguta 'Ananasnaya', 'Issai' and 74-49 and A. deliciosa 'Hayward' will be studied. In fall/winter 2005/06, 10 tissue samples will be collected from each accession every two weeks from October 15 through March 15. Each tissue sample will be a 5-node one-year-old fruiting cane section. Tissue samples will be placed in potting media in flats in a greenhouse (~ 15 to 20C, natural daylength) with bottom heat and misting or in flasks with water (best methodology to be determined in 2004/05). Tissue samples will be evaluated daily for percentage of bud break and days to budbreak - up to 30 days, after which time they will be discarded. In spring/summer, 2006, date of bud break, first and last flower, and fruit harvest date (female vines) will be collected. A correlation analysis between these data and the chilling requirement will be performed. This study documents a Specific Cooperative Agreement with Oregon State University. Significant Activities that Support Special Target Populations The following 13 genotypes of kiwifruit were evaluated in winter 2005-06 and 2006-07: �Issai� and �Hayward� (NWREC); �Ananasnaya�, 74-49, and �Ken�s Red� (2 locations: NCGR, Corvallis and NWREC, Aurora); �Red Princess�, A. arguta var. purpurea, 127-40, �Kuchta�, �Geneva-1�, �Jumbo�, �Chang Bai Giant�, and �Chang Bai Mountain-3� (NCGR). Five to seven node cuttings of one-year-old wood were collected every two weeks from 14 Oct 2005 to 17 Feb. 2006 and 6 Oct. 2006 to Feb-Mar. 2007. Cuttings were stuck in moist media in the greenhouse and evaluated for percent bud break and days to bud break for up to 30 days. This is being monitored through written annual reports provided by the primary investigator. The PI and the ADODR discussed project plans, reviewed program goals and accomplishments during small fruits meetings throughout the year. The financial statement was prepared by the PI's accountant and provided to the ADODR. The research site was easily accessible to the ADODR. The PI was in compliance with terms and conditions of the extramural agreement. There were 1551 and 1613 cumulative chilling hours at the NWREC and the NCGR, respectively, in 2005-06. Chang-Bai Mt. 3 had the lowest estimated chilling requirement at less than 310 hours. Genotypes with a medium chilling requirement (~ 610 hours) included Chang Bai Giant, Dumbarton Oaks, Meader, and A. var purpurea. Ananasnaya, Ken�s Red, Issai, and Geneva-1 ranged from 610 to 750 chill units. Genotypes with the highest chilling requirement, 750 to 1000 CU, were Jumbo, Cornell, and Hayward.
Impacts
(N/A)
Publications
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Progress 10/01/06 to 09/30/07
Outputs
Progress Report Objectives (from AD-416) To determine the chilling requirement of hardy kiwifruit germplasm to ascertain potential production range in the Pacific Northwest. Determine whether there is a correlation between rate of acclimation, deacclimation, and total chilling requirement on time of bud break, bloom, and harvest in the field. Approach (from AD-416) Fifteen of the most promising hardy kiwifruit accessions housed at the National Clonal Germplasm Repository were selected based on commercial potential for the Pacific Northwest. The commercially grown Actinidia arguta 'Ananasnaya', 'Issai' and 74-49 and A. deliciosa 'Hayward' will be studied. In fall/winter 2005/06, 10 tissue samples were collected from each accession every two weeks from October 15 through March 15. Each tissue sample was a 5-node one-year-old fruiting cane section. Tissue samples were placed in potting media in flats in a greenhouse (~ 15 to 20C, natural daylength) with bottom heat and misting or in flasks with water (best methodology determined in 2004/05). Tissue samples were evaluated daily for percentage of bud break and days to budbreak - up to 30 days, after which time they were discarded. In spring/summer, 2006, date of bud break, first and last flower, and fruit harvest date (female vines) was collected. A correlation analysis between these data and the chilling requirement will be performed. This study documents a Specific Cooperative Agreement with Oregon State University. Significant Activities that Support Special Target Populations This report serves to document research conducted under a Specific Cooperative Agreement between ARS and Oregon State University. Additional details of research can be found in the report for the parent project 5358-21000-033-00D, Management of Temperate Adapted Fruit Nut and Specialty Crop Genetic Resources and Associated Information. Samples of fifteen promising hardy kiwifruit accessions from the USDA ARS Corvallis Repository Genebank and Oregon State University North Willamette Research and Extension Center were collected in fall winter 2005/2006 and 2006/2007. These dormant samples were examined for days to budbreak, first and last flower and fruit harvest date(female vines). A correlation analysis between these data and the chilling requirement for each cultivar will be performed. Results will be published in a journal article and presented at annual small fruits meetings. The rate of acclimation, deacclimation and the total chilling requirement to time of budbreak, bloom, and harvest will be determined. This information will assist berry growers in the Pacific Northwest to choose appropriate cultivars for production. ADODR Statement: This is the second year of the project, Evaluation of Hardy Kiwifruit Germplasm. The ADODR met with the cooperating PI at small fruits meetings during the year and discussed results through phone calls and e-mail. Data was collected last winter and this winter and being analysed and interpreted. Preliminary results were reported at the Northwest Center for Small Fruits annual meeting in December 2006. The total funding for this project will be expended within the alloted time and the data will be published in a collaborative journal article.
Impacts
(N/A)
Publications
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Progress 10/01/05 to 09/30/06
Outputs
Progress Report 4d Progress report. Evaluation of Hardy Kiwifruit Germplasm This report serves to document research conducted as a result of a Specific Cooperative Agreement between ARS and Oregon State University, Department of Horticulture. Additional details of research can be found in the report for the parent project 5358-21000-033-00D, "Management of Temperate Adapted Fruit, Nut, and Specialty Crop Genetic Resources and Associated Information". In the Fall/winter 2005-2006, 10 tissue samples will be collected from about 10 different cultivars of hardy kiwifruit that are established at the USDA ARS National Clonal Germplasm Repository in Corvallis, Oregon, and the North Willamette Experiment Station of Oregon State University, in Aurora, Oregon. These samples will be collected every two weeks from October 15 through March 15. Samples will consist of a 5 node, 1 year old fruiting cane section. Samples will be forced under warm conditions. The days to bud break
will be counted and contrasted to determine the chilling requirement for each cultivar. In the spring 2006, date of bud- break, first and last flower, and fruit harvest date (female vines) will be collected. A correlation analysis between these data and the chilling requirement will be performed. This will be he first year of a two year study. Reports will be written after the two years data are collected.
Impacts
(N/A)
Publications
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Progress 10/01/04 to 09/30/05
Outputs
4d Progress report. This report serves to document research conducted as a result of a specific cooperative agreement between ARS and the Oregon State University, Department of Horticulture. Additional details of research can be found in the report for the parent project 5358-21000-033-00D, "Management of Temperate Adapted Fruit, Nut, and Specialty Crop Genetic Resources and Associated Information". In the Fall/winter 2005-2006, 10 tissue samples will be collected from about 10 different cultivars of hardy kiwifruit that are established at the USDA ARS National Clonal Germplasm Repository in Corvallis, Oregon, and the North Willamette Experiment Station of Oregon State University, in Aurora, Oregon. These samples will be collected every two weeks from October 15 through March 15. Samples will consist of a 5 node, 1 year old fruiting cane section. Samples will be forced under warm conditions. The days to bud break will be counted and contrasted to determine the
chilling requirement for each cultivar. In the spring 2006, date of bud- break, first and last flower, and fruit harvest date (female vines) will be collected. A correlation analysis between these data and the chilling requirement will be performed. This will be he first year of a two year study. Reports will be written after the two years data are collected.
Impacts
(N/A)
Publications
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